The length of the altitude AD is 12 units.
<h3>How to find the height of a triangle?</h3>
The height of the triangle can be found as follows:
We have to find an angle using cosine law before we can find the height.
Therefore,
20² = 13² + 21² - 2 × 21 × 13 cos B
400 = 169 + 441 - 546 cos B
400 - 610 = - 546 cos B
-210 = - 546 cos B
cos B = -210 / -546
cos B = 0.38461538461
B = cos⁻¹ 0.38461538461
B = 67.3810899783
B = 67.38°
Hence,
sin 67.38° = opposite / hypotenuse
sin 67.38° = AD / 13
cross multiply
AD = 13 sin 67.38°
AD = 11.9999882145
AD = 12 units
learn more on triangle here: brainly.com/question/13387814
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396,000
because 5 goes up and anything lower than five stays the same
When looking at a # line it goes up or down so ex of a # line -3, -2, -1, 0, 1, 2, 3 so on a # line 11.1, 11.2, 11.3, 11.4, 11.5, 11.6 ,11.7 so going from zero 11.6 is larger than 11.3 so 11.6 is greater than 11.3
Answer:
3.5*10^3=3,500
3,500+ 575,900=579,400
Step-by-step explanation:
The correct answer would be 3.65.
